Shandong Huifeng Aluminum invest cast aluminum products

Cast aluminum is a process in which molten aluminum is poured into a mold and cooled to form aluminum parts of the desired shape. Castings obtained by casting aluminum are called aluminum castings.




In the process of casting, aluminum castings are prone to defects such as internal porosity, shrinkage cavities, and pores. After these defective castings are machined, the surface dense layer components are removed to expose the internal organizational defects. For automotive aluminum castings with sealing requirements, such as cylinder blocks, cylinder heads, intake manifolds, brake valve bodies, etc., during the pressure sealing test, the existence of defective micropores will lead to the leakage of sealing medium and cause a large amount of damage. Waste products, and these defects are often found only after pressure testing after machining, resulting in serious waves of working hours, raw materials and energy. In order to solve the problem of high scrap rate of automobile aluminum castings and save the castings that may be scrapped due to the above defects, certain treatment measures should be taken in production. The most commonly used technology is infiltration treatment, that is, plugging. The so-called “impregnation” is to infiltrate the impregnating agent into the micropores of the aluminum casting under certain conditions, and after curing, the filler infiltrated into the pores is integrated with the inner wall of the casting pores to block the micropores. The process technology that enables the parts to meet the conditions of pressurization, anti-seepage and anti-leakage.





The cost of cast aluminum parts is low, the craftsmanship is good, and the remelting and regeneration saves resources and energy, so the application and development of this material are enduring. For example, the research and development of cupola-electric furnace double smelting process and equipment; Extensive use of advanced molten iron desulfurization and filtration technology; thin-walled and high-strength cast iron manufacturing technology; Cast iron composite manufacturing technology; Surface or local strengthening technology of iron castings; A complete set of technology for isothermal ductile iron; Adopt special technology and equipment such as metal mold casting, metal mold sand-covered casting, continuous casting, etc. Casting aluminum casting light alloy has a series of excellent properties such as low density, high specific strength, corrosion resistance, etc., will be more widely used in aviation, aerospace, automobile, machinery and other industries. Especially in the automobile industry, in order to reduce fuel consumption Improving energy efficiency and replacing steel and iron castings with aluminum and nickel alloy castings is a long-term development trend. Among them, it focuses on solving pollution-free, efficient and easy-to-operate refining technology, metamorphism technology, grain refinement technology and rapid detection technology before furnace . In order to further improve material properties and maximize the potential of materials, high-quality aluminum alloy materials, especially aluminum matrix composite materials, can be developed to meet the performance requirements of different working conditions; Strengthen the research on cluster alloy smelting process, continuous alloy die casting and squeeze casting process and related technology development research; improve ferroalloy smelting equipment and related technology and process development research.


微信图片_20220623141602 微信图片_20220623141607


Post time: Jul-01-2022